Attachment for wrenches



-U1:'-IrrED STATES PATENT OFFICE.

LEONARD A. BANTA, 0F

FELLOWS, CALIFORNIA, AS SIGNOR 0F ONE-HALF TO CHARLES E. ELLIS, OFFELLOWS, CALIFORNIA.

ATTACHMENT FOR WRENCHES.

which may be used'in connection with socket wrenches for expediting theremoval of cap screws and bolts. It is a purpose to provide a tool ofthis character which will find a broad range of uses, andconvenientuses, 1n

and around automobiles, during the assembly and disassembly ofautomobile parts, and in other mechanical operations.

It is a purpose" to provide an attachment tool for socket wrenches whichhas clamping characteristics and which may be readily attached anddetached from an ordinary socket wrench, and which will function to gripone end of acap screw or bolt in order to hold the head or nut thereofwhile the socket wrench is bein turned to unscrew said bolt or cap screwfrom its anchored po sition.

With the above principal objects, and others, in view, the invention hasrelation to the attachment tool for socket wrenches, an exampleof whichisdescribed in the following specification, pointed out in the appendedclaims, and portrayed in the accom panying drawings, wherein: l

Figure 1 shows an attachment tool for socket wrenches mounted in serviceposition upon a socket wrench, and clamped in posi' tion to hold a boltnut to facilitate removal of a bolt by the socket wrench.

Figs. 2 and 3 illustrate a sideand edge view of the attachment toolremoved from the socket wrench with which it operates.

Figs. 4' and 5 respectively illustrate sec tions taken upon the line 4-1, and the line 5-5 of Fig. 1.-

An attachment tool for socket wrenches built according to the plansjofthis invention, consists of a wrench head mounted on a shank member,with the shank member mounted upon the stem of a socket wrench andspaced therefrom in order to cooperate Specification of Letters latent.

v bracket.

Patented Apr. 27, 1920.

Application filed July 18, 19195 Serial No. 311,691.

with the socket wrench in removing bolts prises a hook or bearingreceptacle 11 inte grally made with a plate 12 said plate havingout-turned spaced ears 13.

A hole polygonal in cross section is formed through each "ear 13 tomount the shank 7. I A collar 14 is ustably clamped on the shank by ascrew 15 or other means. The collar 14: limits one-way movement of theshank in the guide bracket but permits said shank to move upwardly fromthe guide On the other end of the shank member there is fittedaretaining guide'wliich comprises a lock plate and guide'bracket. Thislast named guide bracket functions similar to the one aforedescribed.This guide bracket comprises a plate 16 with spaced cars 17 andoutstanding bearing receptacle. 18. V i

The bearing receptacles 11 and 18 are shaped in the form of hooks butfunction as bearings to rotatably retain the stem of a socket wrench aslater seen. The hooks or bearing receptacles are in alinement to receivethe cylindrical stem of a socket wrench. A lock-plate is associated withthe retaining guide, and functions to lockably retain the stem-of asocket wrench in the bearing receptacles. The lock plate consists of theplate 20 withan over-hanging edge 21. 'The forward edge of the lockplate 20 is cut on a radius approximately the radius of the handle orstem of a socket wrench with which the attachment tool is associated.This arcuate construction of one end of the lock plate is shown in Fig.5.

Thelock plate is punched out in the center of the plate 20 whichprovides an elongated opening 22, and a portion of metal is leftintegral with the plate 20 in order to form a lock dog 23. Theover-hanging shank member 7. The guide bracket comthe position shown inFig. 2. The retaining guide is secured upon the shank member by ascrew24 which anchors the retaming guide in fixed position upon the lower'endof the shank member.

A COIlQCl CO IIlPIT-BSSIOH spring 25 is confined on' the shank memberbetween the r the spring and sliding the shank through guide bracket andretaining guide in order to holdthe collar ll and shank? in limitedmovement relative with the guidebracket 12. The wrench head SVmay bemovedoutwardly from the guide bracket by pressing the member-1 2.

The above description essentially covers the construction and assemblyof the attachment tool for socket wrenches. A socket wrench of anysuitable type may be connected with this attachment tool. fOne form ofsocket wrench is shown in Fig. 1 which comprises a socket head 27adapted to receive the hexagonal bolt head 28. socket head is madeintegral with a stem 29, and the stem is provided with a hand grip 30.This laterdescription essentially, in a manner, discloses a conventionalsocket wrench. The description to follow will set out the combinationand use of these two tools. i

In order to oin the socket wrench and at tachment tool together forjoint operation, the lock plate 20 will be displaced from normalposition as shown in Fig. 2. r This will openupthe receptacle 18 andpermit the stem 29 of the socket wrenchto be inserted within theconfines of the bearing receptacles 11 and18. The lock plate will thenbe pushed back into normal position and, engage the stem 29 to confineit in rotatable relation i with the guide 12 and retaining member 16.The'forward edge ofthe car 13 acts to retainand guide the stem 29 uponthe attachment tool., The attachment tool and socket wrench are,therefore, joined in spaced relation, and the socket head 27 and thehex-receptacle 9 are alined one with the other. The wrench head 8 willbe pushed upon one end of the bolt tobe removed, while the socket 27will be pushedupon the other end of the bolt. The socket tool 29 is nowrotated to unscrew the bolt while the attachment tool stands in firm andsteady position to prevent the head of the nut from turning.

V] hen the lock plate said purposes.

The

' By using this combination tool the most stubborn or rusty bolts may bequickly removed. The invention is presented tofill a long-felt need fora mechanics tool of this nature and for carrying out the afore- Havingthus described my invention, what I claim as new, and desire to secureby Letters Patent is:

1. An attachment tool for socket wrenches, comprising; ,-a pair ofspaced guides, a shank member slidably confined inone guide and anchoredto the other guide, a spring confined on the shank member. between theguide members, a wrench head carried by the shank member, and ,a lockplate provided with a slotted opening confined on the shank memberand'movable relative thereto in order to hold .a socket wrench inoperative connection with the attachment tool. I

r 2. An attachment tool for socket wrenches, comprising; a "pair ofspaced guides, a shank member slidably confined in one guide andanchored to the'other guide, a spring confined on the shank memheadcarriedby the shank member, anda lockplate associated with theshank member andmovable relative thereto in order to holda socket wrench inoperative con-' nection with the attachment, tool.

3. An attachment tool. for socket wrenches, comprising; a pair of spacedguides employed to hook around a socket wrench, a shank member carriedby the spaced guides, and a lock plate confined on the'shan'k member tocooperate with one of the guides to lock the attachment tool in workingrelation withza socket wrench. 1

4. An attachment tool. for socket wrenches, comprising; a pairnof spacedguides, a shank member slidably confined in one guide and anchored tothe other guide, a wrench headcar'ried'by the shank member, a lock plateassociated Withthe' shank member and movable relative thereto .member, alock plate associatedwith'the shank member and movable relative theretoj in order to hold a socket wrench. in operativeconnection with theattachment. tool, a spring confined'on the shank memberbe V tween the.guides to hold the attachment 7 tool :in effective engagement with abo1t130 head or nut, and a collar fixed on the shank member adjustableup and down thereon to limit the movement of the shank relatively to oneof the guides when the attach-, ment tool is removed from a socketWrench.

6. An attachment tool for Wrenches, comprising: a shank member, a Wrenchhead anchored to the shank memher, a pair of guides carried by the shankmember, a hook formed on the outer end of each guide to hook aroundandengage a socket Wrench, and means associated with one of the hooks forjoining the attachment tool With a socket Wrench .in Workingcooperation.

7. An attachment tool for socket Wrenches, comprising: a shank member, aWrench head anchored to the shank member, a pair of guides carried bythe shank member, a hook formed on the outer end socket.

of each guide to hook around and engage a socket Wrench, meansassociated with one of the hooks for joining the attachment tool With asocket Wrench in Working cooperation, and a coil spring confined on theshank member between the guides to hold the Wrench head in engagementwith a bolt head or nut. i

8. An attachment tool for socket Wrenches, comprising: a shankj member,guides on the shank member, a Wrench head anchored to the shank head, ahook formed on each guide to hook around and engage a socket Wrench, alocking plate associated With the shank and having an arcuate end tocontact the shank of a socket Wrench of the guide.

LEONARD A. BANTA.

